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How to detect when an Android app goes to the background and come back to the foreground
...cation is started for the first time and before it is killed. You can read more in Activity.
There isn't any direct approach to get the application status while in the background or foreground, but even I have faced this issue and found the solution with onWindowFocusChanged and onStop.
For more d...
How to remove all white spaces in java [duplicate]
...all the white space within that line.
the line can consist of one word or more.
14 Answers
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When to use reinterpret_cast?
...t's not specified in the standard, and it may not be true on machines with more complex memory systems.)
For casting to and from void*, static_cast should be preferred.
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What is the C# equivalent of NaN or IsNumeric?
...p; Char.IsDigit(c);
}
return value;
}
or if you want to be a little more fancy
public Boolean IsNumber(String value) {
return value.All(Char.IsDigit);
}
update 2 ( from @stackonfire to deal with null or empty strings)
public Boolean IsNumber(String s) {
Boolean value = true;
i...
Run/install/debug Android applications over Wi-Fi?
... which will put the server on your phone back to the USB mode. If you have more than one device, you can specify the device with the -s option: adb -s <DEVICE_IP_ADDRESS>:5555 usb.
No root required!
To find the IP address of the device: run adb shell and then netcfg. You'll see it there.
To ...
Is [UIScreen mainScreen].bounds.size becoming orientation-dependent in iOS8?
...endent in iOS8, not a bug. You could review session 214 from WWDC 2014 for more info: "View Controller Advancements in iOS 8"
Quote from the presentation:
UIScreen is now interface oriented:
[UIScreen bounds] now interface-oriented
[UIScreen applicationFrame] now interface-oriented
Status bar fr...
What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?
...r domains are only possible with correct CORS settings
If you want to read more, I found these very useful: (article), (article), (article), (tutorial).
HTML5 Websockets:
A client requests a webpage from a server using regular http (see HTTP above).
The client receives the requested webpage a...
Detecting request type in PHP (GET, POST, PUT or DELETE)
...ETHOD'] === 'POST') {
// The request is using the POST method
}
For more details please see the documentation for the $_SERVER variable.
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How to check if an object is an array?
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Here is a more complete list of browsers that support Array.isArray
– lightswitch05
Dec 17 '14 at 18:51
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What is the difference between the 'COPY' and 'ADD' commands in a Dockerfile?
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You should check the ADD and COPY documentation for a more detailed description of their behaviors, but in a nutshell, the major difference is that ADD can do more than COPY:
ADD allows <src> to be a URL
Referring to comments bellow, the ADD documentation states that:
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